hudson



@eine tstrs betritt @fitta M. B. HUDSON, OF OANANDAIGUA, NEW YORK, ASSIGNOR TO HIMSELF. J. S. ROBINSON, AND J. G. HUDSON, OF THE SAME PLACE.

Letters Patent No. 63,723, dated April 9, 1867; antedatacl lfm-cli 1, 1867.

IMPROVEMENT IN GHURNDASHER.

TOALL WHOM IT MAY CONOERN:

Be it known that I, M. B. I-IUDSON,l of Canandaigua, in the county of Ontario, and State of New York, have invented a certain new and useful Improvement in Ohurn-Dashers; and I do hereby declare that the following is a full and exact description thereof, reference being had to the accompanying drawings of this specileation.

Figure l is an elevation of my improved dasher in the act oi' rising in the cream.

Figure 2, a section of the same in the act of falling in the cream.

Figure 3, an elevation ofthe valve detached and inverted in the form 9i' a tunnel.

Like letters of reference indicate corresponding parts in all the figures;u

My improvement belongs to that class knownixas atmospheric dasheis, and the invention consists in the employment, in combination with a-conical dasher, of a valve in the form ofan inverted tunnel sliding vover the dasher-rod and socket of the flasher, so as to be removable for washing, and serving to cover the ports at the top of the dasher at once, and thereby obviate the use of several distinct valves.

As representedA in the drawings, A is the dasher proper, which is' preferably made of tin or other sheet metal. It consists of a vertical rim, a, surmounted by a cone, I1, having 'atl the top a socket or stem, a, for the reception of the dasher-rod B. Inithe bottom of the daehcr is made a`series of holes, d d, .tor the passage of the cream; and in the upper part ofthe cone is also made a series of holes,fff, in a circlc'around, which serve making part as ports for the admission of air. Over the top of the cone, and covering the ports, rests a valve, C, which is also made of the corresponding conical form so as to rest snugly, and which has a socket, g, that passes freely over both the dasher-rod and the socket of the dasher. The valveis thus in the form of an inverted tunnel. The valve is gauged in its upward movement, when in use, by a removable pin or stop, i.

The great advantage of this arrangement consists in the peculiar form and construction of the single out side valve, whereby it covers all the ports at onec, and whereby it is removable for the purpose of washing. A dasher is already in use consisting cfa bulb of wood of bowl-shape, and having on top several globe or ball valves confined over the ports by Wire cages or loops. The great dillic'ulty with such valves is that they not only become clogged with the cream and butter, and are thus inefficient in forming the desired vacuum in the up stroke, but are also .extremely diilicult to clean from the particles sticking withiii. In my arrangements, the smooth conical sides of both the valve and dasher throw oil` the particles without clogging or sticking, and present a smooth,

unbroken surface for washing. A great advantage in washing is secured by making the valve removable by simply detaching the pin L and slipping the valve up over the rod.

I am aware of no other dasher in which the valve is situated outside the dasher and can be slipped ofl` in working, as above set forth. Nor do I know of any other dasher in which the single valve situated outside `covers all the ports. In ordinary atmospheric flashers, either several valves are employed, asin the device before referred to, or else the dasher-rod is made hollow and the valve situated inside, in which ease it is very diiiicult to keep the valve clean. In such devices, also, the action is just the reverse of mine, since the vulve closes when the dasher goes down, instead of when it comes up. y It will be seen that such particles ol' the butter and cream as adhere between the valve and flasher top will be washed oli` by thelflow up through the portsf, and will slide down the inclined sides of the dasher. By this arrangement the device is self-cleaning and the vacuum is rendered effective. When the-valve is removed and inverted, as in lig. 3, it serves as a very convenient tunnel for many purposes. i

I am aware that a hollow dasher-head, with several globe or ball valves in its top, has before heen-used. I am also aware that a hollow dasher-rod with an interior valve hasl been known; but such I do not claim..

What I claim as my invention, and desire to secure by Letters Patent, is-

The special combination and arrangement of the valve O, with the conical dasher A, the said valve being situated outside the dasher, and being removable from the dasher and rod and covering all the ports wheniin use, as herein set forth.

In witness whereofI have hereunto signed my namdiin the presence of two subscribing witnesses.

M. B. HUDSON.

Witnesses:

I. HINMAN SMITH, Lnsrnn P. THOMPSON. 

